13 Weeds With Pink Flowers: What to Keep and What to Kill

Weeds with pink flowers are the types that can make gardens look quite attractive. However, not all plants with pink flowers are harmless because getting lawn weeds is common in many gardens, but they could also be invasive.

To determine if the flowering weeds in your garden are safe to keep, let’s explore some of the most common ones that tend to pop up in our garden, so let our comprehensive list of flowering weeds guide your decisions.

List of Common Weeds with Pink Flowers

1. Spear Thistle

Plant information	Cirsium vulgare – scientific name Asteraceae – family USDA zone 3 to 9
Distinguishing characteristics	Biennial or perennial plant that can grow up to six feet tall Basal rosette of spiny leaves and stems Pink-purple flowers surrounded by prickly bracts bloom from June to August
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Spines can cause skin pricks or irritation upon contact Can be poisonous when consumed in large amounts Taken as an invasive weed due to its aggressive nature

This weed is an impressive prickly plant with a distinctive pink blossom. Despite its thorny appearance, this weed has a long history of traditional medicinal use to treat ailments, such as liver disorders, skin conditions, and digestive issues.

On another note, they are also ones that are known to be invasive through their strong and aggressive growth.

However, you should get rid of them because they are weeds, and most importantly, because they are toxic to humans, and if you have kids, it would intoxicate them by their toxic nature if ingested.

2. Rosebay Willowherb

Plant information	Chamerion angustifolium – scientific name Onagraceae – family USDA zone 2 to 8
Distinguishing characteristics	Tall, herbaceous perennial with pink blossoms that show up from July to September Lance-shaped leaves are arranged in a spiral pattern along the stem Plant can grow up to six feet tall
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Considered as highly toxic to humans and animals Considered as invasive due to its aggressive nature

This particular weed is a tall, pink flowering plant that can grow up to five feet tall. This weed is used in traditional medicine to treat urinary tract infections.

When the conditions of its growth are met with the location it is placed, this is the type of weed that will grow in a strong way and spread. If you wish to get rid of them, you could always try to use herbicides, as the best solution.

3. Wild Violet

Plant information	Viola sororia – scientific name Violaceae – family USDA zone 4 to 9
Distinguishing characteristics	Low-growing, herbaceous perennial Heart-shaped leaves Purple-pink blossoms that come out from April to June
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	No known reported issues of the toxicity of the plant Has an invasive growth that spreads

Wild violets are small, delicate plants commonly found in heavily wooded areas and along the sunny edges of fields. They grow in a strict way and spread so fast, although what is nice about them are the little flowers that they spread in pink color.

These plants have been used in traditional medicines, usually in the treatment of skin conditions, such as eczema and psoriasis.

4. Herb Robert

Plant information	Geranium robertianum – scientific name Geraniaceae – family USDA zone 4 to 8
Distinguishing characteristics	Low-growing, herbaceous plant that can be an annual or perennial Small pink flowers that pop up from May to October Deeply lobed leaves turn pungent and unpleasant when crushed
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	No known reported issues of the toxicity of the plant Quite aggressive in its growing nature

Herb Robert, also known as Stinky Bob, is a small, creeping plant commonly found in shady woodland areas, as well as near the edges of sunny fields. When crushed, its leaves emit a strong aromatic odor that many find highly unpleasant.

On another note, they are weeds that grow at a fast pace and in an aggressive way in zones 4 to 8 of the USDA regions.

5. Field Bindweed

Plant information	Convolvulus arvensis – scientific name Convolvulaceae – family USDA zone 3 to 9
Distinguishing characteristics	Twining vine Pale pink to white funnel-shaped flowers that show up from June to September Alternating leaves are shaped like arrowhead along the stem
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Contains alkaloids that may present mild toxicity in humans and animals Thought of as a fast and invasive spreading plant

Despite its beauty, this plant is considered a noxious weed in many areas as it can grow up to six feet long in a matter of vining and spreading. Parts of the plant are used in traditional medicine to treat fever and heal wounds while the flowers and roots are used as laxatives.

Keeping this in mind, you must remove them, because if you have a child who consumes it, it will intoxicate the human body. As a result, you should try to use herbicides or weed killers to get rid of them.

6. Heal-all

Plant information	Prunella vulgaris – scientific name Lamiaceae – family USDA zone 3 to 9
Distinguishing characteristics	Low-growing, herbaceous perennial Spikes of pink-purple flowers show up from June to September Square stems have opposite leaves that may grow up to 18 inches tall
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Nontoxic to humans Has a quick and strong spreading force

Heal-all is used in the treatment of wounds and skin conditions. Additionally, it is used to make mouthwash, as well as tinctures to relieve insect bites and other minor skin irritations, such as scrapes.

However, it does grow in a quick matter as long as the conditions are met with its growing nature; for instance, if the soil is moist and the sun is direct, this weed will spread.

7. Henbit Deadnettle

Plant information	Lamium amplexicaule – scientific name Lamiaceae – family USDA zone 3 to 10
Distinguishing characteristics	Low-growing herbaceous weed that can be an annual or biennial Small pinkish-purple flowers bloom from March to May Opposite, scalloped-edge leaves with stems that can grow up to 12 inches tall
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Non-toxic to the human body Has a wild spreading and growing nature.

In traditional medicine, this weed is used to treat respiratory conditions, including coughs and colds. In case you wish to keep this weed, place it in an area to keep it contained and controlled.

However, if you see them in your garden and wish to get rid of them, you could always apply some herbicides in early fall, and it will no longer pop up and grow.

8. Red Clover

Plant information	Trifolium pratense – scientific name Fabaceae – family USDA zone 4 to 9
Distinguishing characteristics	Herbaceous perennial weed Round, pink flower heads show up from May to September Trifoliate leaves with white V-shaped mark
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Non-toxic to humans but very toxic to animals Spreads and grows fast within seven days

Growing up to two feet tall, the red clover is often found in undisturbed meadows, as well as on the dappled edges of grassy fields. It is used to treat skin conditions and relieve menopausal symptoms.

Moreover, if you have pets, especially dogs, and they eat these fast-growing weeds, you should be careful because it may cause infertility.

9. Common Chickweed

Plant information	Stellaria media – scientific name Caryophyllaceae – family USDA zone 3 to 11
Distinguishing characteristics	Low-growing, herbaceous annual Small pinkish-white flowers pop up from March to May Opposite oval leaves with pointed tips
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Non-toxic to the human body Has an invasive growth and spread

Growing up to eight inches tall, this weed is used to treat skin conditions, such as eczema and psoriasis, which is why this is the type of plant that is considered to have medical properties. Additionally, this weed is used in folk medicine to treat asthma, constipation, inflammation, and dyspepsia.

Nonetheless, some would like to get rid of it, because it would spread so tall and so fast, which is why you should remove it. The removal process can be pulling them by hand, which works fine, but if you want to get rid of common chickweed for good, the best way is to remove it completely from the roots.

10. Evening Primrose

Plant information	Oenothera biennis – scientific name Onagraceae – family USDA zone 3 to 9
Distinguishing characteristics	Biennial weedy herb Showy flowers in yellows and pinks, showing up from June to September Lance-like leaves arranged in a basal rosette
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Not a toxic plant Has a strong growing and spreading ability

Surprisingly, this weedy plant has pink flowers aside from its usual yellow. It is commonly found in many pastures and meadows, as well as on the edges of grassy fields growing up to six feet tall. Each color variation of the primrose flowers has a different meaning!

As long as the sun is direct, you will see the plant growing in a very strong and even invasive way; the reason behind this is that you will see it growing and spreading in summer.

11. Creeping Buttercup

Plant information	Ranunculus repens – scientific name Ranunculaceae – family USDA zone 3 to 8
Distinguishing characteristics	Dark green, deeply toothed three-part leaves that often have pale spots Half-inch flowers usually show up from March to August
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Entire plant is toxic to humans and animals Ability to spread is quite fast

This weed is commonly found in many meadows and sunny pastures. Despite its analgesic properties, it can be harmful when ingested.

This is the type of plant that has beautiful flowers, but if consumed by humans or animals, it will intoxicate the immunity. As a result, if you wish to get rid of them, you should apply some herbicide.

12. English Daisy

Plant information	Bellis repens – scientific name Asteraceae – family USDA zone 4 to 8
Distinguishing characteristics	Perennial herbaceous weed growing up to eight inches tall Rosettes of spoon-shaped, small, rounded leaves that grow flat to the ground Flowers usually show up from March to April
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Saponin and oxalate content make this weed moderately toxic to humans Invasive and quick growth

This weed can be found growing all over grassy meadows and dusty roadsides. The English daisy is often used in traditional medicine to treat bronchitis and other respiratory inflammations.

If you wish to keep this plant away from spreading so quickly, the best solution is to remove it entirely from the deep roots.

13. White Clover

Plant information	Trifolium repens – scientific name Fabaceae – family USDA zone 3 to 10
Distinguishing characteristics	Perennial weedy plant with a dwarf prostate growth habit Globular rich green leaves Flowers usually pop up from June to September
Growing conditions	Moist, well-draining soil Full sun to partial sun
Associated issues	Entire plant is toxic to humans and animals Aggressive nature when growing

Despite its name, this weedy plant can produce flowers in pinks and yellows. It is a popular livestock plant, as well as a gardening plant due to its ability to improve the soil by fixing nitrogen content.

Conclusion

Flowering weeds are great additions to our gardens. However, they can present some issues along the way. Let’s recap what we’ve learned so far:

• Some weeds can be harmless and even used in food and teas, because they do not have a toxic sap.
• Keep away from weedy plants that have spikes or contain toxins.
• Prevent invasive weeds from taking over your garden by removing them immediately.

Which of these weeds have you encountered? What are you planning to do with them? You also know how to remove them when necessary! Check out 13 perennial plants that also have pink flowers to make ur garden look even better!